TAILIEUCHUNG - Genetic divergence studies in marigold (Tagetes erecta)

An experiment was laid out in a randomized block design (RBD) with three replications to evaluate genetic diversity of 12 varieties of marigold using Multivariate genetic divergence analysis (Mahalanobis, 1936). Based on D2 values, all the 12 marigold varieties were grouped into two clusters. Cluster I consisted of 11 varieties, viz., Pusa Narangi Gainda, Pusa Basanti Gainda, Pusa Arpita, Hajo Orange, Mumbai Orange, Hajo Yellow, Sunrise Orange, Hawaii Orange, Calcutta Orange, Calcutta Yellow, Yellow Babuda; while cluster II consisted of only Seracole. The inter-cluster distance between the two clusters I and II was found to be . The cluster means for most of the characters differed considerably. The intra- cluster distance of cluster I was while it was zero for cluster II being with only one variety. The inter-cluster distance being larger than the intra cluster distance suggested wider genetic diversity among the varieties at the two different clusters indicating that crosses may be attempted between the varieties of the cluster I with that of Seracole, the only variety of cluster II to obtain new desirable recombinants in marigold. | 2019 8 5 8-12 EXCELLENT PUBLISHERS International Journal of Current Microbiology and Applied Sciences ISSN 2319-7706 Volume 8 Number 05 2019 Journal homepage http Original Research Article https Genetic Divergence Studies in Marigold Tagetes erecta Sangita Mahanta Madhumita Choudhury Talukdar and Pranab Talukdar Department of Horticulture Assam Agricultural University Jorhat - 785013 Assam India Corresponding author ABSTRACT Keywords Marigold varieties cluster D2 Analysis and Genetic Divergence Article Info Accepted 04 April 2019 Available Online 10 May 2019 An experiment was laid out in a randomized block design RBD with three replications to evaluate genetic diversity of 12 varieties of marigold using Multivariate genetic divergence analysis Mahalanobis 1936 . Based on D2 values all the 12 marigold varieties were grouped into two clusters. Cluster I consisted of 11 varieties viz. Pusa Narangi Gainda Pusa Basanti Gainda Pusa Arpita Hajo Orange Mumbai Orange Hajo Yellow Sunrise Orange Hawaii Orange Calcutta Orange Calcutta Yellow Yellow Babuda while cluster II consisted of only Seracole. The inter-cluster distance between the two clusters I and II was found to be . The cluster means for most of the characters differed considerably. The intra- cluster distance of cluster I was while it was zero for cluster II being with only one variety. The inter-cluster distance being larger than the intra cluster distance suggested wider genetic diversity among the varieties at the two different clusters indicating that crosses may be attempted between the varieties of the cluster I with that of Seracole the only variety of cluster II to obtain new desirable recombinants in marigold. Introduction Marigold Tagetes erecta is one of the most commonly grown commercial flower crops in India. In India it ranks first among loose flowers followed by chrysanthemum Jasmine tuberose and crossandra .

• Sinh học
• D2 Analysis
• Genetic divergence
• Tagetes erecta
• Genetic divergence studies
• Genetic divergence studies in marigold
• Mahalanobis D2 analysis
• Pearl millet
• Cluster analysis
• Hot arid climate
• Mahalanobis D2 analysis over five years
• Genetic diversity of tomato
• Solanum lycopersicum L
• Genotypes through D2 analysis
• Above mentioned traits
• Genetic variability
• Genetic variability and D2 analysis
• D2 analysis for yield
• Quality traits in tomato
• Tomato (Solanum lycopersicum L )
• Finger millet
• Cluster mean
• Genotypes using D2 analysis
• Application of Taguchi on surface roughness
• Regression analysis on surface roughness
• Machining hardened AISI D2 steel
• Hardened AISI D2 steel
• Optimum parametric condition
• Taguchi design of experiment
• D2 statistics
• Genetic diversity
• Cowpea [Vigna unguiculata (L
• ) Walp
• Sorghum bicolor L
• Highest no of genotypes
• Mahalanobis D2 statistic
• Cluter mean
• Mahalonobis D2 statistics
• Pigeonpea genotypes
• Modelling of tool wear
• Analysis of tool wear
• Surface roughness in hard turning of AISI D2 steel
• Response surface methodology
• The analysis of variance
• Clustering pattern
• Breeding potential of Brinjal
• Brinjal (Solanum melongena L
• Hill Zones of Karnataka
• Saccharum spp
• Mahalanobis D2
• Sugarcane (Saccharum spp Complex)
• Morphological characterization
• Genetic diversity analysis of sugarcane
• D2 and genetic divergence
• Genetic divergence analysis
• Advanced breeding lines
• Advanced breeding lines of groundnut
• Mahalanobis D2 statistics
• Genetic diversity analysis
• Okra genotypes
• Morphological markers
• Sesamum indicum
• Canonical analysis
• Capsule characters
• Ash gourd
• Principal component analysis
• Principal components
• Euclidean and Tocher analysis
• Litchi hybrids
• D 2 statistic techniques
• Non aromatic germplasm of rice
• Genetic divergence analysis in aromatic
• Euclidean clustering analysis
• Tocher’s method
• Genetic divergence analysis in muskmelon
• Fruit morphological aspects
• Analysis of variance
• Inter and intra cluster distance
• Intra cluster
• Linseed (Linum usitatissimum L
• Diversity analysis in linseed
• Diversity analysis
• High zinc wheat
• Wheat (Triticum aestivum L
• Genetic analysis
• Oil palm genotypes
• Genetic diversity in oil palm genotypes
• Multivariate analysis
• Brassica juncea
• Mahalanobis’s D2 statistics
• Indian mustard
• Landraces and salinity
• Saline stress condition
• Genetic diversity in traditional landraces
• Rice for yield
• Withania somnifera
• Inter and intra cluster